222544073 has 2 divisors, whose sum is σ = 222544074. Its totient is φ = 222544072.

The previous prime is 222544037. The next prime is 222544079. The reversal of 222544073 is 370445222.

Together with previous prime (222544037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117440569 + 105103504 = 10837^2 + 10252^2 .

It is a cyclic number.

It is not a de Polignac number, because 222544073 - 2⁸ = 222543817 is a prime.

It is not a weakly prime, because it can be changed into another prime (222544079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111272036 + 111272037.

It is an arithmetic number, because the mean of its divisors is an integer number (111272037).

Almost surely, 2^222544073 is an apocalyptic number.

It is an amenable number.

222544073 is a deficient number, since it is larger than the sum of its proper divisors (1).

222544073 is an equidigital number, since it uses as much as digits as its factorization.

222544073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 222544073 is about 14917.9111473423. The cubic root of 222544073 is about 605.9991440551. Note that the first 3 decimals are identical.

Adding to 222544073 its reverse (370445222), we get a palindrome (592989295).

The spelling of 222544073 in words is "two hundred twenty-two million, five hundred forty-four thousand, seventy-three".